Padlock



j. KACZANOWSKI.

PA'DLocK.

APPLICATION FILED APR. 18| 1922.

15429, 83 n I Patented Sept. 19, 1922.

f Il Ill' minimum Patented Sept. 19, 1922.

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rin. Y

JOHN KACZANOWSKI, OF NEW YORK, N. Y.

PADLocx.

Application led April 18,1922. Serial No. 554,851.

will be characterized `by difficulty in picking For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth. I.

Fig. 1 of the drawings is a perspective view of a suit-case having my improved lock provided thereon.

Fig. 2 is a longitudinal sectional view through the lock, the operating parts being shown in elevation.

Fig. 3 is an enlarged fragmentary transverse section, this view being taken along the line 3-3 ofv Fig. 2.r

Fig. 4 is a detail sectional View taken on the line 4.-4 of Fig. 3. A

Fig. 5 is a longitudinal vertical section, partlyin elevation, of the key.

Fig. 6 is atransverse sectional view of the key, takenon the line 6-6 of Fig. 5.

Fig. 7 is a face view of a padlock with the invention applied thereto.

My improved lock, as embodied. for application in a trunk lor..suitcase, comprises a rectangular casing 10 which may havea widened base iange 11 formed with holes 12. adapted to receive rivets whereby the lock may be secured to the desired object such as the suit-case 13 to which it is shown applied in Fig. 1, the cover 13 of the suit-case being provided with a hasp 14 which the bolt of the lock engages in a well known manner.

The bolt is indicated at 16 and comprises a Hat bar slidably guided along the inner wall of the casing'lO by pins 17 fixed in the latter and engaging in longitudinal slots 18 in the bolt. The end of the bolt 16 which engages the hasp 14 is laterally projected to one side as at 16 and bifurcated to engage in a suitable pair of openings in the hasp..

The bolt is normally urged to lockingposition by a bow-spring 20 connected at one end to a stud 21 in the casing 10 and bearing at its opposite end against the rearedge of the lateral projection 16 on the bolt.

The bolt is retracted by` means of an arm 25 fixed on a disk 26 rotatable in the casing y 10, the spindle 27 on which the disk is [ixed having a squared outer endadapted to be .engaged in a square socket in the end of the key to turn the disk. The arm 25 projects into a notch 28 in one side of bolt 16 to operate the latter, the notch being elongated suiiciently to allow the bolt to move back when the hasp engages the beveled end elements 16 thereon.

rIhe disk 26 is normallyheld against rotation by means of a series of slidable pins 30 projecting therefrom parallel to spindle 27 andguided in-hollow bosses 31 on the disk,

these pins 30 being pressed outwardly by .coiled expansion springs such as 32 seated inthe bosses and bearing on the inner ends ,ofthe pins.

These pins are `of relatively differing llengths and the outer ends thereof project `into a suitably formed thickened portion of the front wall element 10 of the casing and have enlarged heads 34 thereon accommodated in interior recesses 35 in the casing Wall 10', the :pins projecting into the recesses 35 through narrow `arcuate slots 36 concentric to the axis of pintle 27. Suitably formed inthe wall 10 are-interior arcuate slot-like recesses 37 which are of equal width circular recesses 35 and register with the slots 36, forming in effect with the latter T- vgrooves communicating at one end with the ,recesses 35, vThe recesses 35, as shown, extend axially in each direction .past the ends of the recesses 37 and the heads 34 on. the pins are of an axial dimension to engage in said recesses when moved axially to registry` therewith. The different recesses 37 are so Lformed in the wall 10 to be at different relato, and communicate at one end with, the

iio

Vopenings 38 in casing shank engages the spindle 27 v of the lock.

Fixed on the shank 40 is a pin 45 projecting into an arcuate slot 46 inthei-nner facey ofthe collar 43, thus allowing a limited relative rotative movement ofthe collar on the shank. The casing wall `l0 has anopening 48-therein which registers 'with the spindle y 27 and through which the key is inserted.'

The manner of operation ofvmy improved lock is as follows: The lengths of the vdifferent pins 44 are so proportioned with respect to the relative positioning of "the arcuate recesses 3.7 with' regard to either the face lof di'sk26v or of casing wall lOhthat when the keyis inserted in the opening 48 and the front end of the shank engages the disk 26,'or the ycollar 43 engages thev wall v10', Teach ofthe heads 34 on the spring-pressed pins 30 will be moved into registry with said arcuate recesses 37, thus permitting partial rotation of the spindle27 andretraction of the bo`lt'16,'the Shanks of the` pins30 moving through `the slots 3,6,` and the heads through Ithe recesses 37." When ythe heads ride of'fthe key-pins 44 they will have engaged with the recesses 37 permitting their movement to be continued. `When the key is withdrawn the bolt 16, under the influence of spring .20,causes the disk y26 toy be rotated backward, the heads 34 on pins 3.()

snapping outwardly into the outer ends of the -circle recesses 35 and so locking lthe disk. Thehasp '14, when the lockiis` to be secured, is simply pushed into place through the usualopening inthe casing wall 10. As indicated in Figs. 2 and '7 I'may provide'a dummy locking element 49 to confuse anyone trying to pick the lock. In Fig. 7 vI have shown my invention applied to a padloclcO the key receiving spindle being 'indicated at 27 and thev openings for the pinsf44 at 3`8. l

Having thus described my invention what I claim` asV newanddesire toy protect by Letters Patent ofthe United States is as follows: f

LA lockcomprising a casing, a bolt; a

i. key-engageable yspindlerotatably mounted in said casing and adapted to operate saidbolt,

ya' series "of spring-pressed 'pins spaced y vdimensions of said heads, and adapted to prevent rotary movement of the engaging the said '-heads.

2. A lock comprising a casing, a bolt, a key-engageable spindle rotatably mounted spindle in said casing and adapted to operate said bolt, a series of spring-pressed pins'yspaced *aro-und' and fixed to said spindle and extendling lparallel thereto', said pins having heads thereon, and pairs of iixed elements in the casing spaced lapart a distance, longitudinally ofsaid pins equal to the longitudinal dimensionsl of said heads, and 4adapted to `prevent .rotary movement of the spindle by engaging the saidheads, said pins being of relatively varying lengths, for the' purpose specified.v

3. A lock comprising a casing, a bolt, a y.

key-engageable spindle rotatably mounted in lsaid casing kand adapted to operate said bolt', disk fixed on said spindle and having la yseries of hollow `bosses thereon spaced 'around ythe 'spindle and'exte'nding parallel thereto, spring-pressed pins guided in said bosses and held: against rotation by a yfixed part of the casing, the front wall of the casing having openings ltherein registering with the said pinsfwhen the' lock-bolt is in 'operative position.' i l 4. A lock comprising a'casing, a'bolt, a key-engageable spindle rotatably mounted in said casing and adaptedy to 'operate said bolt, a disk fixed on said spindle and having a series of hollow bosses thereon spaced Y yaround the Spindle and parallel thereto,

spring-pressed pins guided in said `bosses and having heads thereon proJecting into linterior recesses in the front wall `of the casl ing, arcuate T-grooves inthe innergface of the said front wall communicating at one end with'v said recesses and having their transverse arms communicating with the said recesses between the ends thereof, said front :wall of the casing having` openings therein`- communicating vwith the lsaid recesses.

' In testimonywhereof I have aiiixed'rny signature.y

JOHN KAcziiNowsKLj 

